There are seven pages cut from what diaries remained. Histarians have researched and concluded they contain some very interesting bits of information but cannot be directly claimed due to the very fact that those pages are MISSING. Guess work is all that is left. Educated guess work, nonetheless.
But, you and I (and the rest of the world) know that LC was very much in a relationship with little Liddel. I would have been, too, if I had known not only Her, but all Her sisters. But grown Liddel never let the cat out of the bag, as it were.